(C) Zone refining is employed for preparing extremely pure metals.It is based on the principle that when a molten solution of the impure metal is allo

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(C) Zone refining is employed for preparing extremely pure metals.It is based on the principle that when a molten solution of the impure metal is allowed to cool,the pure metal crystallises out while the impurities remain in the melt.Example: Semiconductors like $Si$,$Ge$,and $Ga$ are purified by this method.

Class 12 Chemistry General Principles and Processes of Isolation of Elements Refining of crude Metal

Medium

Zone refining is a method to obtain

A
Very high temperature
B
Ultra pure $Al$
C
Ultra pure metals
D
Ultra pure oxides

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Refining of crude Metal

$Si$ and $Ge$ used for semiconductors are required to be of high purity and hence purified by:

Easy

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Match the refining methods (Column $I$) with metals (Column $II$).

Column $I$ (Refining methods) Column $II$ (Metals)

$(I)$ Liquation $(a)$ $Zr$

$(II)$ Zone refining $(b)$ $Ni$

$(III)$ Mond process $(c)$ $Sn$

$(IV)$ Van Arkel Method $(d)$ $Ga$

DifficultJEE MAIN 2019

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The anode mud in the electrolytic refining of silver contains

Easy

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$A$ metal which is refined by poling is

Easy

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Which of the following elements is extracted using $I_2$ as the reactant?

EasyTS EAMCET 2018

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Column $I$ (Refining methods)	Column $II$ (Metals)
$(I)$ Liquation	$(a)$ $Zr$
$(II)$ Zone refining	$(b)$ $Ni$
$(III)$ Mond process	$(c)$ $Sn$
$(IV)$ Van Arkel Method	$(d)$ $Ga$

Zone refining is a method to obtain

Similar Questions

$Si$ and $Ge$ used for semiconductors are required to be of high purity and hence purified by:

Match the refining methods (Column $I$) with metals (Column $II$). Column $I$ (Refining methods) Column $II$ (Metals) $(I)$ Liquation $(a)$ $Zr$ $(II)$ Zone refining $(b)$ $Ni$ $(III)$ Mond process $(c)$ $Sn$ $(IV)$ Van Arkel Method $(d)$ $Ga$

The anode mud in the electrolytic refining of silver contains

$A$ metal which is refined by poling is

Which of the following elements is extracted using $I_2$ as the reactant?

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Match the refining methods (Column $I$) with metals (Column $II$).

Column $I$ (Refining methods) Column $II$ (Metals)

$(I)$ Liquation $(a)$ $Zr$

$(II)$ Zone refining $(b)$ $Ni$

$(III)$ Mond process $(c)$ $Sn$

$(IV)$ Van Arkel Method $(d)$ $Ga$